High density compress



July 26, 1932- G; w. LANGFORD ET AL HIGH DENS ITY COMPRESS Filed Feb. '7, 1930 Geo 0V4. 14 6 zc/ I. A a/7Z2;

ATTORN EYS Patented July, 26, 1932 UNITED STATES PAT E'N-Ti' OFFICE e-none-s w. LANGFORD AND HAROLD L. HAINES, or ANN aanoamroniean, essreivons T0 ncoNoMY BALER COMPANY, or Aim- ARBOR; MICHIGAN, A ooaro m'rron or" MICHIGAN men nENsIrYcorrrRnss 1 Application filed February 17. 1930. Serial No. 429,166.

The invention relates to highdensity com-g presses and refers more particularly tothe side platens of high density compresses and the mechanism for actuating the side platens. One of the objects of the invention is-to provide an improved side platen actuating mechanism having'a cushioning or relief device through which the actuating force is transmitted. Another object is to provide a cushioning or relief device in the connections between a side platen and a mechanical power device. Further objects of the inven tion reside in the various features of construction and combinations of parts as more fully hereinafter set forth.

- In the drawing I Figure 1 is a side elevation, partly broken away, of a high density compress embodying our invention. Figure 2 is a fragmentary horizontal sec tional view taken substantially on the line 22 of Figure 1.

The high density compress has the base 1 Which is formed of the spaced columns 2. 3 is the upper platen of the high density compress mounted upon the base at the upper ends of the columns and having the depending portion 1 which extends between the columns. 5 are tie rods extending transversely through the columns and the depending portion for securing the parts together. 6 is the lower platen of the high density compress below the upper platen and suitably guided by the columns 2 and adapted to be raised and lowered by suitable means (not shown) such as toggle levers, connected'to the lower platen and to reduction gearing, which is mounted above and upon the upper platen.

7 are the side platens which are pivotally mounted at their lower ends upon the columns 2. These side platens are actuated by tog le levers comprising the upper and lower levers 8 and 9, respectively, with the upper levers pivotally connected at 10 to the swinging edges of the side platens and the lower levers pivotally mounted upon the shafts 11 which are spaced outwardly from and extend parallel to the side platens. The levers 8 and 9 are adapted to be in substantial alignment when thesicle platens are in closedposition.

12ers revoluble gears in axial alignment and driven T by corresponding pinions 13, which in turn are driven by suitable reductionigearing. These revoluble gears are located below the lower platen 6 and one is used for actuating one side platen and the other is, used for actuating the other side.

platen, the two being driven together so that the side platens are simultaneously actuated from open toclosed' positions or vice versa.

Since the, connections between the side platens and their respective actuating revoluble gears are thesame, but one will be described. 14 is a linkpivotally connected at one end to the revoluble gear 12. and pivotally connectedat the other end to the link 15 by a pin which extends transversely through the cross head 16, which guided by suitable means such as'the brackets 17 The construe tion is such that when the side platen isin closed position the. links 14 and 15 are in alignment and the plane passing throughthe axes of their pivots passes through the axis to the arm 18. which is fixed to the arm 19 and i forms therewith a .bell crank pivotally mountedupon the shaft 11. The free end'of the arm 19 preferably extends beneaththe pivotally connected ends'ofthe toggle levers 8 and 9andispivotally connected to'these pivotally connected ends'by the cushioning or relief device 20 which, as shown. comprises the cylinder 21 pivotally mounted upon the cluding a cushioning or relief device between this power device and the side platen whereby sufficient flexibility is provided to protect the parts from breakage or damage. It will also beseen that we have provided, in addition to the cushioning or relief device, a simple construction of actuating mechanism designed to facilitate holding a side platen in closed position.

\Vhat we claim as our invention is:

1. In a high density compress, a side platen and means for actuating the same including toggle levers connected to said side platen, a revoluble member, a cushioning device connected to said toggle levers, a pivotal bell crank connected to said cushioning device, and link means between said bell crank and revoluble member.

2. In a high'density compress, the combination with a side platen and means for actuating the same including toggle levers comprising a lever pivotally connected to said side platen, and a second lever having a fixed pivot, a revoluble member, a cushioning device pivotally connected to said toggle levers, a pivotal bell crank connected to said cushioning device, a link pivotally connected to said bell crank, a second link pivotally connected to said first mentioned link and to saidrevoluble member, and a guide for the connection between said links arranged so that when the toggle levers are in extended position and the side platen is'in closed position theplane extending through the axes of the pivotal connections of said second link extends adjacent to the axis of said revoluble member.

3. In a high density compress, a side platen, means for actuating the side platen including toggle levers connected to said platen, a cushioning device connected to said toggle levers, a pivotal bell crank connected to said cushioning device, an actuating memher, and link means establishing an operative connection between the bell crank and actuating member.

at. In a high density compress, a side platen. means for actuating the side platen including levers having their adjacent ends pivotally connected together and having their outer ends respectively pivotally connected to the platen and a fixed support forming a toggle, a cushioning device connected to the toggle at the point of connection between adjacent ends of the levers, a bell crank pivotally connected to the fixed pivot for said toggle and connected to the cushioning device, an actuating member, and means establishing an operative connection between the actuating member and bell crank.

In testimony whereof we affix our signatures.

GEORGE IV. LANGFORD. HAROLD L. HAINES. 

